I've pulled lots of wooden cedar and T posts with my FEL using grab hook centered on top of bucket. Chain is at Bottom of post. I put FEL a little off of the ground and tilted so both the top and bottom edge of the bucket are within about 4-6 inches of the post. After some experience you'll get the feel for it. Lift vertically up.
AND, be prepared to put weight, weight, weight on the rear of your tractor... because even with liquid in the tires they can come off the ground with a stubborn post.
Two options for a truly stubborn post. After getting the rear wheels almost off the ground, thus much pressure upward, place a tractor jack under the bucket and jack up... watch out, the post can jump out quickly. Or, use your 3PH as the lifting force with some sort of implement/cross bar on the rear to tie the chain to. Don't try to use just one of the lift arms.
When all else fails, break the post off at ground level. /forums/images/graemlins/grin.gif